20757324450 has 48 divisors (see below), whose sum is σ = 51633811296. Its totient is φ = 5518550400.

The previous prime is 20757324439. The next prime is 20757324499. The reversal of 20757324450 is 5442375702.

It is a junction number, because it is equal to n+sod(n) for n = 20757324399 and 20757324408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159387 + ... + 258686.

It is an arithmetic number, because the mean of its divisors is an integer number (1075704402).

Almost surely, 2^20757324450 is an apocalyptic number.

20757324450 is an abundant number, since it is smaller than the sum of its proper divisors (30876486846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20757324450 is a wasteful number, since it uses less digits than its factorization.

20757324450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418419 (or 418414 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 39.

The spelling of 20757324450 in words is "twenty billion, seven hundred fifty-seven million, three hundred twenty-four thousand, four hundred fifty".